CN104893089B - Covered wire cable halogen-free low-smoke flame retardant material and preparation method thereof - Google Patents
Covered wire cable halogen-free low-smoke flame retardant material and preparation method thereof Download PDFInfo
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- CN104893089B CN104893089B CN201510340282.4A CN201510340282A CN104893089B CN 104893089 B CN104893089 B CN 104893089B CN 201510340282 A CN201510340282 A CN 201510340282A CN 104893089 B CN104893089 B CN 104893089B
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- H—ELECTRICITY
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- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract
The invention discloses covered wire cable halogen-free low-smoke flame retardant material and preparation method thereof, wherein halogen-free low-smoke flame retardant material contains polyolefin base material and compatilizer, in terms of 100 parts of polyolefin base material and compatilizer gross weight number, the weight of polyolefin base material and compatilizer is 80~90 parts by weight：10~20 parts by weight, and in terms of 100 parts by weight polyolefin base materials and compatilizer, the covered wire cable also contains 0.5~2 part of each component antioxidant of following parts by weight with halogen-free low-smoke flame retardant material；140~180 parts of inorganic combustion inhibitor；1~5 part of lubricant；1~4 part of coupling agent；With 0~8 part of Halogen Masterbatch.Material provided by the invention has higher hardness, is especially suitable for the operations such as poling with its manufactured cable, while have very high extruded velocity in the case where meeting the requirements such as cable surface is smooth, line footpath is uniform.
Description
Technical field
The present invention relates to CABLE MATERIALS and its preparation field, and in particular to covered wire cable halogen-free low-smoke flame retardant material and its system
Preparation Method.
Background technology
The popularization of development and correlation technique by the science and technology of optical communications industry in recent years, FTTH (fiber to the home) has been recent
The final solution pattern of Optical Access Network development, it not only adapts to the demand for development of optical arena light science and technology, also complies with users
The transmission requirement of high speed, Large Copacity to optical network signal.Accessed in FTTH in engineering, the mechanical bend of conventional chambers optical cable
Energy and tensile property can not meet the needs of FTTH (fiber to the home) house wiring.In the case of the market demand, occur
The covered wire cable of low bending radius, it will be widely used in the access network of FTTH (fiber to the home).But the rubber-insulated wire of high rigidity
Optical cable material, occur some shortcomings in extrusion：The requirement of high speed extrusion (high production capacity) can not be met；It is in high speed extrusion
Easily there is the problems such as rough surface, line footpath inequality.
The content of the invention
For the problems of above-mentioned existing covered wire cable material, an object of the present invention is to provide one kind
High rigidity, while meet the covered wire cable high extrusion low-smoke non-halogen flame-retardant of high rigidity of the advantage of lower cost of high speed extrusion requirement
Material.
The second object of the present invention is to provide a kind of high rigidity, while meets the advantage of lower cost of high speed extrusion requirement
Covered wire cable halogen-free low-smoke flame retardant material preparation method.
In order to achieve the above object, the present invention provides a kind of covered wire cable halogen-free low-smoke flame retardant material, the fire proofing
Containing polyolefin base material and compatilizer, in terms of 100 parts of polyolefin base material and compatilizer gross weight number, polyolefin base material and compatible
The weight of agent is 80~90 parts by weight：10~20 parts by weight, and in terms of 100 parts by weight polyolefin base materials and compatilizer,
The covered wire cable also contains each component of following parts by weight with halogen-free low-smoke flame retardant material：
In a preferred scheme of above-mentioned fire proofing, the polyolefin base material by ethylene-vinyl acetate copolymer and/
Or linear low density polyethylene (LLDPE) composition；Combined if both, ethylene-vinyl acetate copolymer and linear low density polyethylene (LLDPE) weight
Than for 35~50：40~55.
Preferably, the weight percent content of vinyl acetate is 25%~35% in the ethylene-vinyl acetate copolymer,
Melt index is 2~8g/10min；The melt index of linear low density polyethylene (LLDPE) is 0.2~4g/10min, the melt index
Measurement standard be 3682,190 DEG C × 2.16Kg of GB/T.
In a preferred scheme of above-mentioned fire proofing, the compatilizer includes the polyene of maleic anhydride functional groups grafting
Hydrocarbon.
In a preferred scheme of above-mentioned fire proofing, the compatilizer is the poly- second of maleic anhydride functional groups grafting
Alkene, determined using GB/T3682-2000 methods, 0.5~2g/ of melt index of the polyethylene of maleic anhydride functional groups grafting
10min。
In a preferred scheme of above-mentioned fire proofing, maleic acid in the polyethylene of the maleic anhydride functional groups grafting
Acid anhydride grafting rate 0.5%~1.5%, counted on the basis of the gross weight of the polyethylene of maleic anhydride grafting.
In a preferred scheme of above-mentioned fire proofing, the antioxidant is four [β-(3,5- di-t-butyl -4- hydroxyls
Phenyl) propionic acid] pentaerythritol ester, the one or more in the double lauryls of thio-2 acid.
In a preferred scheme of above-mentioned fire proofing, the inorganic combustion inhibitor is aluminium hydroxide.
In a preferred scheme of above-mentioned fire proofing, the lubricant is one kind in Tissuemat E, paraffin, silicone oil
It is or several.
In a preferred scheme of above-mentioned fire proofing, the coupling agent is vinyltrimethoxy silane, vinyl
One or more in three ('beta '-methoxy ethyoxyl) silane, isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters.
In a preferred scheme of above-mentioned fire proofing, the Halogen Masterbatch is the Halogen color using polyethylene as base-material
Master batch.
The present invention also provides the preparation method of covered wire cable halogen-free low-smoke flame retardant material, and the preparation method includes following step
Suddenly：
(1) by polyolefin base material, compatilizer, antioxidant, coupling agent, inorganic combustion inhibitor, lubricant and optional Halogen color
Master batch is added in double screw extruder according to proportioning and carries out mixing extrusion；
(2) material that step (1) is extruded is transported on single screw extrusion machine and carries out extruding pelletization；
So as to which described kind of covered wire cable halogen-free low-smoke flame retardant material be prepared.
In a specific embodiment, the polyolefin base material, compatilizer, antioxidant, coupling agent, inorganic combustion inhibitor, profit
Lubrication prescription and optional Halogen Masterbatch and its with such as present invention text described in other parts.
In a specific embodiment, four temperature sections during mixing extrusion are：135~140 DEG C of feeding section, conveying
130~135 DEG C of section, 135~145 DEG C of melt zone, and 145~150 DEG C of head.
In a specific embodiment, the double screw extruder is the double screw extruder with weightless feed system.
In a specific embodiment, when using single screw extrusion machine extruding pelletization, air-cooled pelletizing and drying are carried out.
In a specific embodiment, it is polyolefin base material, compatilizer and optional Halogen Masterbatch is mixed according to proportioning
Close uniformly, be designated as A material；Antioxidant, inorganic combustion inhibitor and lubricant is well mixed according to proportioning, it is designated as B material；Coupling agent is independent
Expect for C；Then A is expected, B material and C material are added in double screw extruder and carry out mixing extrusion.
Present invention additionally comprises the kind covered wire cable halogen-free low-smoke flame retardant material being prepared using above-mentioned preparation method.
According to such scheme, material provided by the invention has higher hardness, is especially suitable for wearing with its manufactured cable
The operations such as pipe, while disclosure satisfy that the requirement of high extrusion：Have in the case where meeting the requirements such as cable surface is smooth, line footpath is uniform very high
Extruded velocity, so as to improve production efficiency, reaching reduces cost, the purpose of additional income.
In addition, the preparation method simple process of halogen-free low-smoke flame retardant material provided by the invention, easily operation.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
The present inventor limits to by in-depth study extensively for the use present in existing covered wire cable material
Property, it is formulated by improving, obtains a kind of high rigidity, high extrusion, advantage of lower cost and a kind of harmless covered wire cable height
The high extrusion halogen-free low-smoke flame retardant material of hardness.
Herein, " high rigidity " refers to shore hardness (HD) more than 50, preferably more than 53." high extrusion ", which refers to, is meeting line
Cable surface is smooth, uniformly etc. the highest extruded velocity under requirement is more excellent preferably at least in more than 80mpm in more than 70mpm for line footpath
It is selected in more than 90mpm.
Accordingly, covered wire cable halogen-free low-smoke flame retardant material provided by the invention, the fire proofing contain polyolefin base material
And compatilizer, in terms of 100 parts of polyolefin base material and compatilizer gross weight number, the weight of polyolefin base material and compatilizer
For 80~90 parts by weight：10~20 parts by weight, and in terms of 100 parts by weight polyolefin base materials and compatilizer, the covered wire cable is used
Halogen-free low-smoke flame retardant material also contains each component of following parts by weight：
Polyolefin base material
Suitable for polyolefin base material of the invention includes but is not limited to ethylene-vinyl acetate copolymer, linear, low density gathers
Ethene or its mixture.
Ethylene-vinyl acetate copolymer known in the art can be used, it is preferred that the use of melt index is 2~8g/
10min, and the weight percent content of vinyl acetate is 25%~35% ethylene-vinyl acetate copolymer.The melting refers to
Several measurement standards is 3682,190 DEG C × 2.16Kg of GB/T.
Linear low density polyethylene (LLDPE) known in the art can be used, it is preferred that the use of melt index is 0.2~4g/
10min linear low density polyethylene (LLDPE).The measurement standard of the melt index is 3682,190 DEG C × 2.16Kg of GB/T.
If the combination of ethylene-vinyl acetate copolymer and linear low density polyethylene (LLDPE), both weights are 35
~50：40~55.It should be understood that when using both combinations, the total weight parts of two kinds of polymer are in foregoing 80~90 parts by weight
Within the scope of.
In a specific embodiment, 82~88 parts by weight are contained in covered wire cable halogen-free low-smoke flame retardant material of the present invention
Polyolefin, such as 83~86 parts by weight.
Compatilizer
Compatilizer suitable for the present invention can known in the art be used for covered wire cable halogen-free low-smoke flame retardant material
In compatilizer, including but not limited to maleic anhydride functional groups grafting polyolefin.
Preferably, the present invention uses the polyethylene that maleic anhydride functional groups are grafted as compatilizer.
It is highly preferred that 0.5~2g/10min of melt index of the polyethylene of the maleic anhydride functional groups grafting of the present invention (makes
Determined with GB/T3682-2000 methods), grafting rate 0.5%~1.5%, with the gross weight of the polyethylene of maleic anhydride functional groups grafting
Counted on the basis of amount.
Antioxidant
Antioxidant suitable for the present invention can known in the art be used for covered wire cable halogen-free low-smoke flame retardant material
In antioxidant, including but not limited to four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, thio dipropyl
One or both of sour double lauryls.
In terms of the polyolefin base material and compatilizer of 100 parts by weight, the parts by weight of antioxidant are usually 0.5~2 part, are preferably
0.5~1.5 part, more preferably 0.5~1.0 part.
If use four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol esters and the bimonthly osmanthus of thio-2 acid
The mixture of ester, both weight in mixture is equipped with also without particular/special requirement, as long as total weight parts are within above range
Can.In some embodiments it is possible to four [β-(3, the 5- di-tert-butyl-hydroxy phenyls) using such as 0.6~0.4 parts by weight
Propionic acid] pentaerythritol ester and 0.3~0.5 parts by weight the double lauryls of thio-2 acid mixture.
Inorganic combustion inhibitor
Inorganic combustion inhibitor suitable for the present invention can be various inorganic combustion inhibitors known in the art, include but is not limited to
Aluminium hydroxide and magnesium hydroxide.
Inorganic combustion inhibitor can be used for the fire proofing of the present invention with conventional amount used known in the art, such as with 100 weight
The polyolefin base material and compatilizer meter of part, use the inorganic combustion inhibitor of 140~180 parts by weight, preferably 140~170 parts by weight.
Lubricant
Lubricant suitable for the present invention can known in the art be used for covered wire cable halogen-free low-smoke flame retardant material
In lubricant, including but not limited to one or more in Tissuemat E, paraffin, silicone oil.
When using two or more lubricants mixture in, to the consumption proportion between each lubricant in mixture without spy
Different limitation, if its total amount in the range of 1~5 parts by weight, in terms of the polyolefin base material and compatilizer of 100 parts by weight.
In some specific embodiments, the present invention is using paraffin and the mixture of silicone oil, and both weights are in 0.3~0.8 weight
Measure part：Within the scope of 1.5~3 parts by weight, such as 0.5~0.6 parts by weight：1.8~2.3 parts by weight.
Coupling agent
Include but is not limited to the vinyltrimethoxy silane, ('beta '-methoxy of vinyl three suitable for the coupling agent of the present invention
Ethyoxyl) silane, the one or more in isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters.
In fire proofing of the present invention, in terms of the polyolefin base material and compatilizer of 100 parts by weight, the dosage of coupling agent is usually
1~4 parts by weight, preferably 1~3 parts by weight, more preferably 2~3 parts by weight.If use the mixture of two or more coupling agents
When, the consumption proportion between each coupling agent in the mixture is had no it is specifically limited, as long as its total amount is in the weight of above-mentioned restriction
In the range of part.
For example, in some embodiments, (dioctyl is burnt with isopropyl three using vinyltrimethoxy silane by the present invention
Phosphoric acid acyloxy) titanate esters combination, both weights are generally in 0.8~1.0 parts by weight：1.3~1.5 parts by weight
In the range of.
In other embodiments, the present invention uses ('beta '-methoxy ethyoxyl) silane of vinyl three and isopropyl three (two
Octyl group pyrophosphoric acid acyloxy) titanate esters combination, both weights are generally in 0.8~1.0 parts by weight：1.3~1.7 weights
In the range of amount part.
Halogen Masterbatch
Halogen Masterbatch suitable for the present invention can be various Halogen Masterbatch known in the art, preferably with poly- second
Alkene is the Halogen Masterbatch of base-material.
In fire proofing of the present invention, in terms of the polyolefin base material and compatilizer of 100 parts by weight, the dosage of Halogen Masterbatch is led to
Often it is 0~8 parts by weight, preferably 0~6 parts by weight.
Preparation method
For also being carried by said components according to the covered wire cable halogen-free low-smoke flame retardant material formed, the present invention is accordingly matched
For corresponding preparation method.
During using the preparation method to prepare halogen-free low-smoke flame retardant material, first, according to the polyolefin base material of 100 parts by weight
(both ratios are 80~90 parts by weight with compatilizer：10~20 parts by weight) meter offer each component：
For polyolefin base material therein, compatilizer, antioxidant, inorganic combustion inhibitor, lubricant, coupling agent and Halogen color
Master batch, specific material can be used according to such scheme and actual demand, as detailed above, be not repeated here herein.
Then, after providing corresponding component according to above-mentioned requirements, by each component：Polyolefin base material, compatilizer, antioxidant,
Coupling agent, inorganic combustion inhibitor, lubricant, Halogen Masterbatch are added in double screw extruder according to proportioning carries out mixing extrusion.
Preferably, the double screw extruder carries high-precision weightless feed system.
Preferably, can be by polyolefin base material, compatilizer and Halogen color when mixing extrusion is carried out in double screw extruder
Master batch is well mixed according to proportioning, is designated as A material；Antioxidant, inorganic combustion inhibitor and lubricant is well mixed according to proportioning, it is designated as
B expects；Coupling agent is individually for C material, and finally three is then added in double screw extruder and carries out mixing extrusion.
Followed by the material extruded in double screw extruder, which is transported on single screw extrusion machine, carries out extruding pelletization.Squeezing
Go out and pelletizing and drying are carried out when being granulated.Pelletizing can be air-cooled pelletizing, and drying can be forced air drying.
Preferably, four temperature sections in mixing extrusion granulation process are：135~140 DEG C of feeding section, transportation section 130~
135 DEG C, 135~145 DEG C of melt zone, 145~150 DEG C of head.
Optionally, methods described includes the step of packing of weighing.
For above-mentioned preparation technology relative to existing preparation technology, its step is easy and easily operates.
Above-mentioned halogen-free low-smoke flame retardant material with and preparation method thereof on the basis of scheme, high rigidity can be obtained, high squeezed
Go out and the halogen-free low-smoke flame retardant material of advantage of lower cost.
For above-mentioned embodiment content, if unless specific instructions, various raw materials of the invention can be by commercially available
Obtain；Or it is prepared according to the conventional method of this area.It should be understood that in the present invention, the term such as "comprising", " comprising " also includes
" by ... form ", " by ... form " meaning.
Unless otherwise defined or described herein, all specialties used herein and scientific words and the skilled people of art technology
Meaning known to member is identical.In addition any method similar or impartial to described content and material all can be applied to the present invention
In method.
Other aspects of the present invention are apparent to those skilled in the art due to this disclosure
's.
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.The experimental method of unreceipted actual conditions in the following example, generally marked according to country
Quasi- measure；If without corresponding national standard, the standard that is proposed according to general international standard or relevant enterprise require into
OK.Unless otherwise stated, all numbers are parts by weight, all percentage is weight percentage.
Embodiment 1
The present embodiment provides covered wire cable halogen-free low-smoke flame retardant material, and the raw material and parts by weight of use are as follows：
It is as follows for the halogen-free low-smoke flame retardant material in this example, its specific preparation method：
By the above-mentioned polyolefin base material of this example, compatilizer, antioxidant, coupling agent, inorganic combustion inhibitor, lubricant, Halogen
The raw material such as Masterbatch add the twin-screw with high-precision weightless feed system according to proportioning and carry out mixing extrusion, and then
It is transported on single screw extrusion machine and carries out extruding pelletization.Air-cooled pelletizing and forced air drying are wherein carried out, then carries out packing of weighing.
In the present embodiment, four temperature sections in mixing extrusion granulation process are：135~140 DEG C of feeding section, transportation section
130~135 DEG C, 135~145 DEG C of melt zone, 145~150 DEG C of head.
Embodiment 2
The present embodiment provides a kind of covered wire cable halogen-free low-smoke flame retardant material, and the raw material and parts by weight of use are as follows：
The preparation method of above-mentioned halogen-free low-smoke flame retardant material is same as Example 1.
Embodiment 3
The present embodiment provides a kind of covered wire cable halogen-free low-smoke flame retardant material, and the raw material and parts by weight of use are as follows：
The preparation method of above-mentioned halogen-free low-smoke flame retardant material is same as Example 1.
Embodiment 4
The present embodiment provides a kind of covered wire cable halogen-free low-smoke flame retardant material, and the raw material and parts by weight of use are as follows：
The preparation method of above-mentioned halogen-free low-smoke flame retardant material is same as Example 1.
Embodiment 5
The present embodiment provides a kind of covered wire cable halogen-free low-smoke flame retardant material, and the raw material and parts by weight of use are as follows：
The preparation method of above-mentioned halogen-free low-smoke flame retardant material is same as Example 1.
Embodiment 6
The present embodiment provides a kind of covered wire cable thermoplastic low-smoke halogen-free flame-resistant material, the raw material and parts by weight of use
It is as follows：
The preparation method of above-mentioned thermoplastic low-smoke halogen-free flame-resistant material is same as Example 1.
Embodiment 7
The properties of the halogen-free low-smoke flame retardant material prepared for embodiment 1~6 are tested accordingly.For the ease of
Compare, list file names with the characteristic of common covered wire cable low smoke and zero halogen material.It is shown in Table 1 and 2.
Table 1：Embodiment the performance test results
Table 2：Embodiment the performance test results
The halogen-free low-smoke flame retardant material of the present invention has high rigidity, high extrusion and cost it can be seen from the content of table 1 and 2
The features such as relatively low, effectively solves the use defect present in existing covered wire cable material.Using its manufactured rubber-insulated wire light
Cable, will inherit these advantages, solve the problems of existing covered wire cable well.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of covered wire cable halogen-free low-smoke flame retardant material, it is characterised in that the material contains polyolefin base material and compatible
Agent, in terms of 100 parts of polyolefin base material and compatilizer gross weight number, the weight of polyolefin base material and compatilizer for 80~
90 parts by weight：10~20 parts by weight, and in terms of the polyolefin base material and compatilizer of 100 parts by weight, the low cigarette of the covered wire cable
Bittern-free flame-proof material also contains each component of following parts by weight：
0.5 ~ 2 part of antioxidant；
140 ~ 180 parts of inorganic combustion inhibitor；
1 ~ 5 part of lubricant；
1 ~ 4 part of coupling agent；With
0 ~ 8 part of Halogen Masterbatch；
Wherein, the polyolefin base material is the mixture of ethylene-vinyl acetate copolymer and linear low density polyethylene (LLDPE)；The second
The weight of alkene-acetate ethylene copolymer and linear low density polyethylene (LLDPE) is 35 ~ 50：40~55；
According to GB ∕ T 3682, the melting of the ethylene-vinyl acetate copolymer determined under the conditions of 190 DEG C × 2.16Kg refers to
Number is 2~8g/10min, and the weight percent content of vinyl acetate is 25%~35% in copolymer；
According to GB ∕ T 3682, the melt index of the linear low density polyethylene (LLDPE) determined under the conditions of 190 DEG C × 2.16Kg is
0.2~4g/10min；
The compatilizer is the polyethylene of maleic anhydride functional groups grafting, is determined using GB/T3682-2000 methods, the maleic anhydride
0.5~2g/10min of melt index of the polyethylene of functional group's grafting, and horse in the polyethylene of maleic anhydride functional groups grafting
Maleic anhydride grafted rate is 0.5% ~ 1.5%, is counted on the basis of the gross weight of the polyethylene of maleic anhydride functional groups grafting；With
The inorganic combustion inhibitor is aluminium hydroxide.
2. covered wire cable halogen-free low-smoke flame retardant material according to claim 1, it is characterised in that
The antioxidant be selected from four [β-（3,5- di-tert-butyl-hydroxy phenyls）Propionic acid] pentaerythritol ester, thio-2 acid be double
Lauryl or its mixture；
The lubricant is selected from paraffin, silicone oil or its mixture；
The coupling agent is selected from vinyltrimethoxy silane, vinyl three（'beta '-methoxy ethyoxyl）Silane, isopropyl three（Two
Octyl group pyrophosphoric acid acyloxy）Titanate esters or its mixture；And/or
The Halogen Masterbatch is the Halogen Masterbatch using polyethylene as base-material.
3. covered wire cable halogen-free low-smoke flame retardant material according to claim 1 or 2, it is characterised in that
The antioxidant contain 0.6~0.4 parts by weight four [β-（3,5- di-tert-butyl-hydroxy phenyls）Propionic acid] pentaerythrite
Ester and the double lauryls of the thio-2 acid of 0.3~0.5 parts by weight；
The lubricant contains paraffin and silicone oil, and both weights are in 0.3~0.8 parts by weight：1.5~3 parts by weight
Within the scope of；
The coupling agent contains vinyltrimethoxy silane and isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters, both
Weight in 0.8~1.0 parts by weight：In the range of 1.3~1.5 parts by weight, or the coupling agent contains vinyl three
（'beta '-methoxy ethyoxyl）Silane and isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters, both weights exist
0.8~1.0 parts by weight：In the range of 1.3~1.7 parts by weight.
4. covered wire cable halogen-free low-smoke flame retardant material according to claim 1 or 2, it is characterised in that
The parts by weight of the polyolefin base material are 82~88 parts by weight；
The parts by weight of the compatilizer are 10~20 parts by weight；
The parts by weight of the antioxidant are 0.5~1.5 parts by weight；
The parts by weight of the inorganic combustion inhibitor are 140~170 parts by weight；
The parts by weight of the lubricant are 1~5 parts by weight；
The parts by weight of the coupling agent are 1~3 parts by weight；And/or
The parts by weight of the Halogen Masterbatch are 0~6 parts by weight.
5. covered wire cable halogen-free low-smoke flame retardant material as claimed in claim 1, it is characterised in that
（1）The parts by weight of the polyolefin base material are 80~90 parts by weight；The ethylene-vinyl acetate copolymer is low with line style close
The weight for spending polyethylene is 35 ~ 50：40~55；According to GB ∕ T 3682, the institute determined under the conditions of 190 DEG C × 2.16Kg
The melt index for stating ethylene-vinyl acetate copolymer is 2~8g/10min, and the percentage by weight of vinyl acetate contains in copolymer
Measure as 25%~35%；According to GB ∕ T 3682, the linear low density polyethylene (LLDPE) determined under the conditions of 190 DEG C × 2.16Kg
Melt index be 0.2~4g/10min；
（2）The parts by weight of the compatilizer are 10~20 parts by weight, and the compatilizer is the poly- of maleic anhydride functional groups grafting
Ethene, determined using GB/T3682-2000 methods, 0.5~2g/ of melt index of the polyethylene of maleic anhydride functional groups grafting
10min, and maleic anhydride grafting ratio is 0.5% ~ 1.5% in the polyethylene of maleic anhydride functional groups grafting, with maleic anhydride official
Counted on the basis of the gross weight for the polyethylene that grafting can be rolled into a ball；
（3）The parts by weight of the antioxidant are 0.5~1.5 parts by weight, and containing 0.6~0.4 parts by weight four [β-（3,5- bis-
Tert-butyl-hydroxy phenyl）Propionic acid] pentaerythritol ester and 0.3~0.5 parts by weight the double lauryls of thio-2 acid；
（4）The parts by weight of the inorganic combustion inhibitor are 140~170 parts by weight；
（5）The parts by weight of the lubricant are 1~5 parts by weight, and the lubricant contains paraffin and silicone oil, both parts by weight
Proportioning is in 0.3~0.8 parts by weight：Within the scope of 1.5~3 parts by weight；
（6）The parts by weight of the coupling agent are 1~3 parts by weight, and the coupling agent contains vinyltrimethoxy silane and isopropyl
Base three（Dioctylphyrophosphoric acid acyloxy）Titanate esters, both weights are in 0.8~1.0 parts by weight：1.3~1.5 weight
In the range of part；Or the coupling agent contains vinyl three（'beta '-methoxy ethyoxyl）Silane and isopropyl three（Dioctyl Jiao's phosphorus
Sour acyloxy）Titanate esters, both weights are in 0.8~1.0 parts by weight：In the range of 1.3~1.7 parts by weight；With
（7）The parts by weight of the Halogen Masterbatch are 0~6 parts by weight, and the Halogen Masterbatch is using polyethylene as base-material
Halogen Masterbatch.
6. a kind of method for preparing the covered wire cable halogen-free low-smoke flame retardant material any one of claim 1-5, it is special
Sign is that methods described comprises the following steps：
（1）By polyolefin base material, compatilizer, antioxidant, coupling agent, inorganic combustion inhibitor, lubricant and optional Halogen Masterbatch
It is added to according to proportioning in double screw extruder and carries out mixing extrusion；With
（2）By step（1）The material of extrusion, which is transported on single screw extrusion machine, carries out extruding pelletization；
So as to which the covered wire cable halogen-free low-smoke flame retardant material be prepared；
Wherein, the polyolefin base material is the mixture of ethylene-vinyl acetate copolymer and linear low density polyethylene (LLDPE).
7. the method for covered wire cable halogen-free low-smoke flame retardant material according to claim 6, it is characterised in that step（1）
Four temperature sections during described mixing extrusion are：135~140 DEG C of feeding section, 130~135 DEG C of transportation section, melt zone
135~145 DEG C, and 145~150 DEG C of head.
8. the method for the covered wire cable halogen-free low-smoke flame retardant material according to any one of claim 6-7, its feature exist
In,
The double screw extruder is the double screw extruder with weightless feed system；
When using single screw extrusion machine extruding pelletization, air-cooled pelletizing and forced air drying are carried out；And/or
The step（1）Including, polyolefin base material, compatilizer and optional Halogen Masterbatch is well mixed according to proportioning,
It is designated as A material；Antioxidant, inorganic combustion inhibitor and lubricant is well mixed according to proportioning, it is designated as B material；Coupling agent is individually for C material；
Then A is expected, B material and C material are added in double screw extruder and carry out mixing extrusion.
9. method as claimed in claim 7, it is characterised in that the step（1）Including, by polyolefin base material, compatilizer with
And optional Halogen Masterbatch is well mixed according to proportioning, A material are designated as；By antioxidant, inorganic combustion inhibitor and lubricant according to
Than being well mixed, B material are designated as；Coupling agent is individually for C material；Then A is expected, B material and C material are added in double screw extruder and mixed
Refining extrusion.
10. the covered wire cable low-smoke non-halogen flame-retardant material being prepared using the method any one of claim 6-9
Material.
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| CN105400062A (en) * | 2015-12-25 | 2016-03-16 | 上海至正道化高分子材料股份有限公司 | Low friction coefficient and low smoke halogen-free cable material for optical cables, and preparation method thereof |
| CN105802001A (en) * | 2016-04-20 | 2016-07-27 | 苏州希普拉斯新材料有限公司 | Low-smoke zero-halogen flame retardant polyolefin cracking resisting material |
| CN109054267A (en) * | 2018-07-12 | 2018-12-21 | 江苏东方电缆材料有限公司 | Ceramic fireproofing cable material without halide |
| CN110003560A (en) * | 2018-12-25 | 2019-07-12 | 上海至正道化高分子材料股份有限公司 | A kind of high fire-retardance polyolefin cable material and preparation method thereof that smoke density is low |
| CN116178827A (en) * | 2022-12-03 | 2023-05-30 | 上海微巨高分子材料有限公司 | SEBS (styrene-ethylene-butylene-styrene) substrate sheath material for butterfly rubber-insulated-wire cable and preparation method thereof |
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| CN102250409B (en) * | 2011-06-13 | 2013-05-01 | 上虞市佳华高分子材料有限公司 | Synergistic flame-retardant low-smoke halogen-free polyolefin cable material and preparation method thereof |
| CN103044758A (en) * | 2012-12-21 | 2013-04-17 | 上海至正道化高分子材料有限公司 | Thermoplastic water-resistant low-smoke halogen-free flame retardant cable material and manufacturing method thereof |
| CN104004265A (en) * | 2014-06-13 | 2014-08-27 | 浙江万马高分子材料有限公司 | Inflaming retarding polyolefin cable material and preparing method and application thereof |
| CN104231409A (en) * | 2014-08-27 | 2014-12-24 | 广东华声电器股份有限公司 | EVA/MLLDPE (ethylene-vinyl acetate/metallocene linear low-density polyethylene) component-type low-smoke halogen-free irradiation-crosslinked wire cable material, and preparation method and application thereof |
| CN104530547A (en) * | 2014-12-19 | 2015-04-22 | 上海至正道化高分子材料股份有限公司 | Thermoplastic low-smoke halogen-free high-flame-retardant material for automobile wire and preparation method of material |
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